PARABOLIC REFLECTOR WITH DUAL CROSS-POLARIZED FEEDS OF DIFFERENT FREQUENCIES
United States Patent 3438041
US Patent References:
Frequency selective mesh with controllable mesh tuning
- - 3148370
Combined infrared-radar antenna
- - 2972743
Dual frequency gregorian-newtonian antenna system with newtonian feed located at common focus of parabolic main dish and ellipsoidal sub-dish
- - 3276022
Frequency selective mesh with controllable mesh tuning
- - 3148370
Combined infrared-radar antenna
- - 2972743
Dual frequency gregorian-newtonian antenna system with newtonian feed located at common focus of parabolic main dish and ellipsoidal sub-dish
- - 3276022
Inventors:
Holtum Jr., Alfred G.
Publication Date:
04/08/1969
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Assignee:
ANDREW CORP
Primary Class:
Other Classes:
343/836, 343/785
International Classes:
H01Q5/00; H01Q19/19; H01Q19/10